ArrivedLeader22 In addition to what I have proposed, we can add the monopoly condition. That is, by declaring a monopoly you have the possibility of restoring the lost building. Hold it for at least 5 minutes, after that you can start restoring your factory or wonder, and after that it doesn’t matter if they end your monopoly. This would add additional difficulty to make it even more difficult.
As JjForcebreaker mentions, this really deserves to be rewarded.
Expensive price.
Creation time.
Commercial monopoly.
Enemy attacks.
Map control.
Imperial age.